ryujinx/Ryujinx.Ava/Input/AvaloniaMouseDriver.cs
Emmanuel Hansen bc5bb4459e
Fix deadlock in mouse input on Avalonia (#3444)
* fix deadlock in mouse input

* apply @AcK77 changes
2022-07-08 09:53:48 -03:00

132 lines
3.7 KiB
C#

using Avalonia;
using Avalonia.Controls;
using Avalonia.Input;
using Avalonia.Threading;
using Ryujinx.Input;
using System;
using System.Numerics;
using MouseButton = Ryujinx.Input.MouseButton;
using Size = System.Drawing.Size;
namespace Ryujinx.Ava.Input
{
internal class AvaloniaMouseDriver : IGamepadDriver
{
private Control _widget;
private bool _isDisposed;
private Size _size;
public bool[] PressedButtons { get; }
public Vector2 CurrentPosition { get; private set; }
public Vector2 Scroll { get; private set; }
public AvaloniaMouseDriver(Control parent)
{
_widget = parent;
_widget.PointerMoved += Parent_PointerMovedEvent;
_widget.PointerPressed += Parent_PointerPressEvent;
_widget.PointerReleased += Parent_PointerReleaseEvent;
_widget.PointerWheelChanged += Parent_ScrollEvent;
PressedButtons = new bool[(int)MouseButton.Count];
_size = new Size((int)parent.Bounds.Width, (int)parent.Bounds.Height);
parent.GetObservable(Control.BoundsProperty).Subscribe(Resized);
}
private void Resized(Rect rect)
{
_size = new Size((int)rect.Width, (int)rect.Height);
}
private void Parent_ScrollEvent(object o, PointerWheelEventArgs args)
{
Scroll = new Vector2((float)args.Delta.X, (float)args.Delta.Y);
}
private void Parent_PointerReleaseEvent(object o, PointerReleasedEventArgs args)
{
var pointerProperties = args.GetCurrentPoint(_widget).Properties;
PressedButtons[(int)args.InitialPressMouseButton - 1] = false;
}
private void Parent_PointerPressEvent(object o, PointerPressedEventArgs args)
{
var pointerProperties = args.GetCurrentPoint(_widget).Properties;
PressedButtons[(int)pointerProperties.PointerUpdateKind] = true;
}
private void Parent_PointerMovedEvent(object o, PointerEventArgs args)
{
var position = args.GetPosition(_widget);
CurrentPosition = new Vector2((float)position.X, (float)position.Y);
}
public void SetMousePressed(MouseButton button)
{
PressedButtons[(int)button] = true;
}
public void SetMouseReleased(MouseButton button)
{
PressedButtons[(int)button] = false;
}
public void SetPosition(double x, double y)
{
CurrentPosition = new Vector2((float)x, (float)y);
}
public bool IsButtonPressed(MouseButton button)
{
return PressedButtons[(int)button];
}
public Size GetClientSize()
{
return _size;
}
public string DriverName => "Avalonia";
public event Action<string> OnGamepadConnected
{
add { }
remove { }
}
public event Action<string> OnGamepadDisconnected
{
add { }
remove { }
}
public ReadOnlySpan<string> GamepadsIds => new[] { "0" };
public IGamepad GetGamepad(string id)
{
return new AvaloniaMouse(this);
}
public void Dispose()
{
if (_isDisposed)
{
return;
}
_isDisposed = true;
_widget.PointerMoved -= Parent_PointerMovedEvent;
_widget.PointerPressed -= Parent_PointerPressEvent;
_widget.PointerReleased -= Parent_PointerReleaseEvent;
_widget.PointerWheelChanged -= Parent_ScrollEvent;
_widget = null;
}
}
}